PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-13:42:40
G02     204.0          27.4                8.2 +/-    1.15      15.1 +/-    1.15  0.070 / 0.130
G06     160.5          66.9                7.3 +/-    0.82       7.9 +/-    0.82  0.080 / 0.120
G12     306.9          16.3                3.5 +/-    1.86       8.5 +/-    1.86  0.190 / 0.270
G17     34.6           50.2                4.7 +/-    0.73       5.9 +/-    0.73  0.120 / 0.220
G19     341.1          68.0                4.9 +/-    0.67       5.3 +/-    0.67  0.090 / 0.080
G24     298.9          38.4                4.3 +/-    0.68       6.4 +/-    0.68  0.100 / 0.090
G28     99.2           33.8                5.9 +/-    0.38       9.6 +/-    0.38  0.030 / 0.030